index.qmd

---
title: "Black Hills Landscape Assessment"
author: "TNC's LANDFIRE Team"
---

## Goals of this demonstration

We will use [LANDFIRE](https://landfire.gov/){target="blank"} products to:

1. Characterize and map past and present ecosystem conditions
2. Explore historical disturbance patterns
3. Summarize patterns of change and management opportunities


The following charts, maps, and graphs are based on current LANDFIRE products, and provide a starting point for further analysis.

This demonstration will:

* Provide context for the past and present ecosystem conditions the Black Hills landscape
* Demonstrate the power of data visualization to explore ecological patterns and functions using LANDFIRE products
* Facilitate an understanding of historical and current conditions on a regional scale

## Location


<br>

```{r libraries, message=FALSE, warning=FALSE, include=FALSE}

library(foreign)
library(sf)
library(terra)
library(tidyverse)
library(raster)


```


```{r read shapefile, message=FALSE, warning=FALSE, include=FALSE}
#  read shape
shp <- st_read("data/") %>% 
  st_transform(crs = 5070) %>%
  st_union() %>%
  st_sf()
```

```{r locator map, message=FALSE, warning=FALSE, echo=FALSE}
library(tmap)

# toggle tmap mode to interactive viewing
tmap_mode("view")

# create a quick interactive map
quickmap <- qtm(shp, 
                borders = "darkgreen", 
                fill = NULL, 
                check.and.fix = TRUE, 
                basemaps = 'https://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tile/{z}/{y}/{x}',
                title = 'Black Hills Subregion',)

quickmap



```

## How to use this web report

* All maps, input datasets and further assistance can be obtained by contacting the author, [Randy Swaty](mailto:rswaty@tnc.org){target="blank"}, Nature Conservancy Ecologist, Conservation Data Lab co-lead
* Review is ongoing
* To share this web app, simply share the hyperlink
* Toggle between dark and light display of this site in the upper right corner of the page